<template>
  <div>
   <!-- 面包屑导航 -->
   <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
   </el-breadcrumb>
   <!-- 卡片区域 -->
   <el-card>
      <!-- 顶部搜索框 -->
      <el-row :gutter="20">
         <el-col :span="9">
            <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getUserList">
               <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
            </el-input>
         </el-col>
         <el-col :span="4">
            <el-button type="primary" @click="addDialogVisible=true">添加用户</el-button>
         </el-col>
      </el-row>
      <el-table :data="userlist" border stripe>
         <el-table-column label='#' type="index"></el-table-column>
         <el-table-column label='姓名' prop="username"></el-table-column>
         <el-table-column label='邮箱' prop="email"></el-table-column>
         <el-table-column label='电话' prop="mobile"></el-table-column>
         <el-table-column label='角色' prop="role_name"></el-table-column>
         <el-table-column label='状态' prop="mg_state">
            <template slot-scope="scope">
               <el-switch
                  v-model="scope.row.mg_state"
                  active-color="#13ce66"
                  inactive-color="#ff4949"
                  @change="userStateChanged(scope.row)">
               </el-switch>
            </template>
         </el-table-column>
         <el-table-column label='操作' width="180px">
            <template slot-scope="scope">
               <!-- 修改 -->
               <el-button type="primary" icon="el-icon-edit" size="mini" @click="showEditDialog(scope.row.id)"></el-button>
               <!-- 删除 -->
               <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeUser(scope.row.id)"></el-button>
               <!-- 分配角色 -->
               <el-tooltip effect="dark" content="分配角色" placement="top" :enterable="false">
                  <el-button type="warning" icon="el-icon-setting" size="mini" @click="setRole(scope.row)"></el-button>
               </el-tooltip>
            </template>
         </el-table-column>
      </el-table>
      <!-- 分页部分 -->
      <el-pagination
      @size-change="handleSizeChange"
      @current-change="handleCurrentChange"
      :current-page="queryInfo.pagenum"
      :page-sizes="[1, 2, 5, 10]"
      :page-size="queryInfo.pagesize"
      layout="total, sizes, prev, pager, next, jumper"
      :total="total">
      </el-pagination>
   </el-card>

  <!-- 添加用户对话框 -->
  <el-dialog
  title="添加用户"
  :visible.sync="addDialogVisible"
  width="50%"
  @close="addDialogClose">
  <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
    <el-form-item label="用户名" prop="username">
      <el-input v-model="addForm.username"></el-input>
    </el-form-item>
    <el-form-item label="密码" prop="password">
      <el-input v-model="addForm.password"></el-input>
    </el-form-item>
    <el-form-item label="邮箱" prop="email">
      <el-input v-model="addForm.email"></el-input>
    </el-form-item>
    <el-form-item label="手机" prop="mobile">
        <el-input v-model="addForm.mobile"></el-input>
    </el-form-item>
  </el-form>
  <span slot="footer" class="dialog-footer">
    <!-- 底部区域 -->
    <el-button @click="addDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="addUser">确 定</el-button>
  </span>
</el-dialog>
<!-- 修改用户 -->
<el-dialog
  title="用户信息修改"
  :visible.sync="editDialogVisible"
  width="50%"
  @close="editDialogClose">
   <el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="70px">
    <el-form-item label="用户名" prop="username">
      <el-input v-model="editForm.username" disabled></el-input>
    </el-form-item>
    <el-form-item label="邮箱" prop="email">
      <el-input v-model="editForm.email"></el-input>
    </el-form-item>
    <el-form-item label="手机" prop="mobile">
        <el-input v-model="editForm.mobile"></el-input>
    </el-form-item>
  </el-form>
  <span slot="footer" class="dialog-footer">
    <el-button @click="editDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="editUser">确 定</el-button>
  </span>
</el-dialog>
<!-- 分配角色对话框 -->
<el-dialog
  title="分配角色"
  :visible.sync="setRoledialogVisible"
  width="50%"
  @close='setRoleDialogClose'>
  <div>
    <p>当前用户：{{userInfo.username}}</p>
    <p>当前角色：{{userInfo.role_name}}</p>
    <p>分配新角色：
      <el-select v-model="seletedRoleId" placeholder="请选择">
        <el-option
          v-for="item in rolesList"
          :key="item.id"
          :label="item.roleName"
          :value="item.id">
        </el-option>
      </el-select>
    </p>
  </div>
  <span slot="footer" class="dialog-footer">
    <el-button @click="setRoledialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
  </span>
</el-dialog>
  </div>
</template>

<script>
export default {
  name: 'users',
  data() {
    const checkEmail = (rule, value, callback) => {
      const regEmail = /^([a-zA-Z]|[0-9])(\w|\-)+@[a-zA-Z0-9]+\.([a-zA-Z]{2,4})$/
      if (regEmail.test(value)) {
        return callback()
      }
      callback(new Error('请输入正确邮箱'))
    };
    const checkMobile = (rule, value, callback) => {
      const regMobile = /^1(3|4|5|6|7|8|9)\d{9}$/
      if (regMobile.test(value)) {
        return callback()
      }
      callback(new Error('请输入正确手机号'))
    };
    return {
      // 获取用户列表参数对象
      queryInfo: {
        query: '',
        pagenum: 1,
        // 当前每页显示多少条
        pagesize: 2
      },
      userlist: [],
      total: 0,
      // 添加用户对话框的显示与隐藏
      addDialogVisible: false,
      // 控制修改用户对话框显示与隐藏
      editDialogVisible: false,
      // 添加用户数据
      addForm: {
        username: '',
        password: '',
        email: '',
        mobile: ''
      },
      // 用户信息查询对象
      editForm: {},
      // 表单验证规则
      addFormRules: {
        username: [
          { required: true, message: '请输入用户名', trigger: 'blur' },
          { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          { min: 6, max: 15, message: '长度在 6 到 15 个字符', trigger: 'blur' }
        ],
        email: [
          { required: true, message: '请输入邮箱地址', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' }
        ],
        mobile: [
          { required: true, message: '请输入手机号', trigger: 'blur' },
          { validator: checkMobile, trigger: 'blur' }
        ]
      },
      editFormRules: {
        email: [
          { required: true, message: '请输入用户邮箱地址', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' }
        ],
        mobile: [
          { required: true, message: '请输入用户手机号', trigger: 'blur' },
          { validator: checkMobile, trigger: 'blur' }
        ]
      },
      // 分配角色对话框显示
      setRoledialogVisible: false,
      // 选中的用户信息
      userInfo: {},
      // 获取的全部角色列表
      rolesList: [],
      // 已选中的角色id值
      seletedRoleId: ''
    };
  },
  created() {
    this.getUserList()
  },
  methods: {
    // 获取用户列表
    getUserList() {
      this.$http.get('users', { params: this.queryInfo }).then(res => {
        if (res.data.meta.status !== 200) return this.$message.error('用户列表获取失败')
        this.userlist = res.data.data.users
        this.total = res.data.data.total
      })
    },
    // 监听pagesize改变
    handleSizeChange(newSize) {
      this.queryInfo.pagesize = newSize
      this.getUserList()
    },
    // 页码值发生改变
    handleCurrentChange(newPage) {
      this.queryInfo.pagenum = newPage
      this.getUserList()
    },
    // 监听用户状态改变
    userStateChanged(userinfo) {
      this.$http.put(`users/${userinfo.id}/state/${userinfo.mg_state}`).then(res => {
        let result = res.data
        if (result.meta.status !== 200) {
          userinfo.mg_state = !userinfo.mg_state
          return this.$message.error('状态更新失败')
        }
        this.$message.success('状态更新成功')
      })
    },
    // 添加用户对话框关闭事件
    addDialogClose() {
      this.$refs.addFormRef.resetFields()
    },
    addUser() {
      this.$refs.addFormRef.validate(valid => {
        if (!valid) return
        // 验证通过发起网络请求
        this.$http.post('users', this.addForm).then(res => {
          console.log(res);
          if (res.data.meta.status !== 201) return this.$message.error('添加失败')
          this.$message.success('添加成功')
          this.addDialogVisible = false
          this.getUserList()
        })
      })
    },
    // 根据id获取用户信息
    showEditDialog(id) {
      this.editDialogVisible = true
      this.$http.get('users/' + id).then(res => {
        let result = res.data
        if (result.meta.status !== 200) return this.$message.error('用户信息获取失败')
        this.editForm = result.data
      })
    },
    // 修改对话框关闭事件
    editDialogClose() {
      this.$refs.editFormRef.resetFields()
    },
    // 修改用户
    editUser() {
      this.$refs.editFormRef.validate(valid => {
        if (!valid) return
        // 发起修改用户信息的网络请求
        this.$http.put('users/' + this.editForm.id, { email: this.editForm.email, mobile: this.editForm.mobile })
          .then(res => {
            let result = res.data
            if (result.meta.status !== 200) return this.$message.error('用户信息修改失败')
            this.editDialogVisible = false
            this.getUserList()
            this.$message.success('用户信息更新成功')
          })
      })
    },
    // 删除用户
    removeUser(id) {
      // 弹框询问 这里返回一个promise对象
      this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).then(() => {
        // 确认返回的是confirm
        this.$http.delete('users/'+ id).then(res => {
          let result = res.data
          if (result.meta.status !== 200) return this.$message.error('删除失败')
          this.$message.success('已删除')
          this.getUserList()
        })
      }).catch(() => {
        // 取消返回的是cancel
        this.$message({
          type: 'error',
          message: '已取消删除'
        })
      })
    },
    // 展示分配角色对话框
    setRole(userInfo) {
      this.userInfo = userInfo
      // 获取所有角色列表
      this.$http.get('roles').then(res => {
        let result = res.data
        if (result.meta.status !== 200) return this.$message.error('角色列表获取失败')
        this.rolesList = result.data
        this.setRoledialogVisible = true
      })
    },
    // 点击按钮分配角色
    saveRoleInfo() {
      if (!this.seletedRoleId) return this.$message.error('请选择要分配的角色')
      this.$http.put(`users/${this.userInfo.id}/role`, { rid: this.seletedRoleId })
        .then(res => {
          let result = res.data
          if (result.meta.status !== 200) return this.$message.error('更新失败')
          this.$message.success('更新成功')
          this.getUserList()
          this.setRoledialogVisible = false
        })
    },
    // 监听分配角色对话框关闭事件
    setRoleDialogClose() {
      this.seletedRoleId = ''
      this.userInfo = {}
    }
  }
}
</script>

<style lang="stylus" scoped>

</style>
